TW201435361A - Wireless testing system and testing method using the same - Google Patents

Abstract

This invention provides a wireless testing system and a testing method using the same. The wireless testing system is adapted for measuring a three-dimensional radiation pattern of a wireless module with the use of a shielded room. The wireless testing system includes a host computer, a rotating mechanism, a measuring device and an antenna. The host computer is disposed outside the shielded room and controls operations of the rotating mechanism, the measuring device and the antenna. The rotating mechanism is disposed inside the shielded room and comprises a spinning base, a supporting arm and a spinning arm. The spinning base is spinable around its spin axis. The spinning arm is mounted on the supporting arm and is spinable together with the wireless module around its spin axis. The measuring device is disposed outside the shielded room and is controlled by the host computer. The antenna is disposed inside the shielded room and is aligned with the wireless module. The antenna is controlled by the measuring system to radiate a wireless signal to the wireless module, or receive a wireless signal radiated from the wireless module.

Description

Wireless test system and measurement method using the same

The present invention relates to a wireless test system, and more particularly to a wireless test system for measuring a 3D antenna radiation pattern of a wireless module that is not independently operated.

At present, various electronic devices (such as notebook computers, tablet computers, televisions, etc.) usually have wireless modules such as Wi-Fi, Zigbee, Bluetooth, GPS, WiMAX, etc., for electronic device operation or data transmission. The above-mentioned various types of wireless modules are usually controlled by a control module of an electronic device (such as a central processing unit), and do not have an independent function. Therefore, the measurement of the three-dimensional radiation field type is usually after the electronic device is assembled. Control and set through the operating platform of the electronic device. However, the disadvantage of this measurement method is that the characteristic detection result of the wireless module is affected by other circuit modules of the electronic device, and cannot exhibit its original characteristics.

Accordingly, it is an object of the present invention to provide a wireless test system that can perform three-dimensional radiation field measurement on a wireless module.

Thus, the wireless test system of the present invention cooperates with a shieldable electric The shielding chamber of the magnetic radiation is used for measuring a three-dimensional radiation pattern of a wireless module that is not independently operated in the shielding room; defining an X direction, a Y direction, and a Z direction perpendicular to each other in the three-dimensional space, The wireless test system includes a main control computer, a indexing mechanism, a measuring device and an antenna.

The main control computer is disposed outside the shielding room, electrically connected to the wireless module, and controls the wireless module to transmit or receive wireless signals.

The indexing mechanism is disposed in the shielding chamber and includes a rotating base, a supporting arm and a rotating arm. The rotating base has a first rotating shaft extending in the Z direction, and is controlled by the main control computer to rotate around the first rotating shaft on the X-Y plane. The support arm is disposed on the rotating base and extends toward the Z direction. The arm is disposed on the support arm and spaced apart from the rotating base, and the wireless module is mounted on the first rotating shaft substantially aligned with the first rotating shaft, and has a section extending along the X direction and passing through the supporting arm Two rotation axes. The arm is controlled by the main control computer to drive the wireless module to rotate around the second rotation axis.

The measuring device is disposed outside the shielding room and is controlled by the main control computer.

The antenna is disposed in the shielding chamber and is substantially in the same X-Y plane as the spiral arm and is substantially aligned with the direction of the wireless module. The antenna is controlled by the measuring device to transmit a wireless signal to the wireless module or receive a wireless signal sent by the wireless module.

Preferably, the wireless test system further includes a remote computer and a shielding box disposed in the shielding room. The remote computer is electrically connected to the wireless module and the main control computer, and is controlled by the main control computer, so that the wireless module transmits and receives wireless signals; the shielding box can shield electromagnetic radiation Shoot and house the remote computer.

Preferably, the measuring device is an optimal sample of a wireless tester or a wireless module.

Another object of the present invention is to provide a measurement method using the foregoing wireless test system for testing a three-dimensional radiation pattern of a wireless module disposed in a shielded room, comprising the following steps: (A) the master control The wireless module mounted on the arm sends a wireless signal and receives the wireless signal from the measuring device through the antenna; (B) the main control computer causes the arm to drive the wireless module along the rotating The second rotation axis of the arm is rotated by a second predetermined angle, and it is determined whether the cumulative rotation angle of the arm reaches a second angle upper limit; if the determination result is "No", the step (A) is re-executed; YES, step (C) is performed; and (C) the main control computer rotates the rotating seat along the first rotation axis of the rotating base by a first predetermined angle, and determines whether the cumulative rotation angle of the rotating base has been A first angle upper limit is reached; if the determination result is "No", step (A) is re-executed; if the determination result is "Yes", the measurement step is completed.

Preferably, in the step (A), the wireless signal sent by the wireless module sets the energy power and frequency via the master computer.

Preferably, in step (A), the master computer controls the wireless module through a remote computer.

Preferably, the measuring device is an optimal sample of a wireless tester or a wireless module.

In another aspect, the method for measuring the wireless test system of the present invention includes the following steps: (A) the master computer causes the measuring device to send a wireless signal through the antenna, and is self-installed on the arm Wireless module Receiving the wireless signal; (B) the master computer causes the arm to rotate the wireless module to rotate a second predetermined angle along the second rotation axis of the arm, and determine whether the cumulative rotation angle of the arm reaches a first The second angle upper limit; if the judgment result is "No", the step (A) is re-executed; if the judgment result is "Yes", the step (C) is performed; and (C) the main control computer causes the rotation seat to rotate The first rotation axis of the seat rotates by a first predetermined angle, and determines whether the cumulative rotation angle of the rotation seat has reached a first angle upper limit; if the determination result is "No", the step (A) is re-executed; If yes, the measurement step is completed.

Preferably, in the step (A), the wireless signal sent by the antenna is set by the master computer through the measuring device to set the frequency, the energy and the number of packets.

Preferably, after the wireless module receives the wireless signal in step (A), the wireless signal is transmitted to the host computer by the remote computer.

Preferably, the measuring device is an optimal sample of a wireless tester or a wireless module.

The effect of the invention is that the wireless test system can measure the three-dimensional radiation field type only for the wireless module that is not independently operated, and can measure the original characteristics of the wireless module. In addition, with the main control computer, the user can easily set and control the wireless module, the measuring device and the indexing mechanism, thereby improving the convenience of the measuring process and saving the time required for testing.

1‧‧‧Wireless Test System

11‧‧‧Master computer

12‧‧‧Transfer institutions

121‧‧‧ rotating seat

122‧‧‧Support arm

123‧‧‧ spiral arm

124‧‧‧First rotation axis

125‧‧‧Second rotation axis

13‧‧‧Measurement device

14‧‧‧Antenna

15‧‧‧Remote computer

16‧‧‧Shielding box

2‧‧‧Shielding room

3‧‧‧Wireless Module

S1~S5‧‧‧ Process steps

F1~F5‧‧‧ Process steps

The other features and advantages of the present invention will be apparent from the following detailed description of the preferred embodiments of the invention, wherein: Figure 1 is a side elevational view showing a first preferred embodiment of the wireless test system of the present invention; 2 is a top plan view of FIG. 1; FIG. 3 and FIG. 4 are flowcharts illustrating a measurement step of the wireless test system to which the first preferred embodiment is applied; and FIG. 5 is a system diagram illustrating the wireless test system of the present invention. Second preferred embodiment.

The above and other technical contents, features and advantages of the present invention will be apparent from the following detailed description of the preferred embodiments of the accompanying drawings.

Before the present invention is described in detail, it should be noted that in the following description, similar elements are denoted by the same reference numerals.

1 and 2 show a first preferred embodiment of the wireless test system 1 of the present invention. The wireless test system 1 includes a main control computer 11, an indexing mechanism 12, a measuring device 13 and an antenna 14, which are used in conjunction with a shielding room 2 for shielding electromagnetic radiation, and are used for measuring one in the shielding room 2 The three-dimensional radiation pattern of the wireless module 3 that operates internally and independently. The type of the wireless module 3 may be a communication module such as Wi-Fi, Zigbee, Bluetooth, GPS, WiMAX, etc., but is not limited to the above types.

The main control computer 11 is disposed outside the shielding room 2, electrically connected to the indexing mechanism 12, the measuring device 13 and the wireless module 3, and controls the operation of the three.

The indexing mechanism 12 is disposed in the shielding chamber 2 and includes a rotating seat 121, a supporting arm 122 and a rotating arm 123. Referring to the coordinate axis designation in the drawing, the rotary base 121 has a first rotation axis 124 extending in the Z direction, and can be controlled by the main control computer 11 and around the first rotation axis 124 on the X-Y plane. Turn. The support arm 122 is disposed on the rotating base 121 and extends in the Z direction. The arm 123 is disposed on the support arm 122 and spaced apart from the rotating base 121 for the wireless module 3 to be substantially aligned with the first rotating shaft 124 of the rotating base 121, and has an extension in the X direction. The second rotation shaft 125 of the support arm 122. The arm 123 can be controlled by the main control computer 11 to drive the wireless module 3 to rotate about its second rotation axis 125.

The measuring device 13 is disposed outside the shielding room 2 and controlled by the main control computer 11, and can set the wireless signal sent by the antenna 14 or analyze the wireless signal received by the antenna 14. In this embodiment, the measuring device 13 is a wireless tester connected to the antenna 14 through a horizontal polarity signal line (not shown) and a vertical polarity signal line (not shown), and connected through an interface. The line is connected to the main control computer 11. However, in other embodiments, the measuring device 13 can also use a golden sample of a rigorously certified wireless module, which can achieve the same effect as the wireless tester, but with different wiring methods. Specifically, when the best sample of the wireless module is used as the measuring device 13, the measuring device 13 must also be connected to the horizontal polarity signal line and the vertical polarity signal line through a programmable attenuator, respectively, and The programmable attenuator is coupled to the host computer 11 for manipulation via a General Purpose Interface Bus (GPIB) connection. Therefore, in accordance with the above description, the embodiment of the measuring device 13 can be adjusted as needed, and is not limited to a specific mode.

The antenna 14 is disposed in the shielding room 2 and is substantially in the same XY plane as the wireless module 3, and is substantially aligned with the first rotation axis 124 of the rotating base 121. The antenna 14 is controlled by the measuring device 13 for transmitting and receiving wireless signals. . Real In the embodiment, the antenna 14 is configured to transmit and receive wireless signals by using a horn antenna. However, the type of the antenna 14 can be adjusted as needed, and is not limited thereto.

Specifically, in the foregoing paragraphs, "the wireless module 3 is substantially aligned with the first rotation axis 124", "the antenna 14 and the wireless module 3 are substantially in the same XY plane", and the antenna 14 is substantially aligned with the first rotation axis. 124" means that when the present invention is implemented, the spatial positional relationship of each member can be slightly adjusted as needed, or an allowable error range exists in the installation position and the alignment direction of each member. Therefore, those having ordinary knowledge in the art should refer to the above. The technical concept of the present invention is implemented without explanation for the content.

Referring to FIG. 1 to FIG. 3, the following describes the flow of the three-dimensional radiation pattern of the total radiated power (TRP) of the wireless module 3 in the first embodiment.

Step S1: First, the user sets the energy power of the wireless module 3 through the main control computer 11, and sends a wireless signal according to a specific frequency. In the meantime, the main control computer 11 analyzes the wireless signal received by the antenna 14 through the measuring device 13 and records it.

Step S2, S3: After the step S1 is completed, the main control computer 11 causes the arm 123 to rotate the wireless module 3 along the second rotation axis 125 by a second predetermined angle, and repeatedly performs steps S1 and S2 until the arm 123 The cumulative rotation angle reaches a second upper angle limit (here 360 degrees).

Steps S4, S5: After completing the foregoing steps, the main control computer 11 rotates the rotating base 121 along its first rotation axis 124 by a first predetermined angle, and repeatedly performs steps S1 to S4 until the cumulative rotation angle of the rotating base 121 reaches Up to a first angle upper limit (here 180 degrees).

According to the above process, the user can perform wireless signal setting of the wireless module 3 by the main control computer 11 and control the measurement step to gradually collect the radiation power intensity of the wireless module 3 in different directions in the three-dimensional space. After the measurement is completed, the main control computer 11 can construct the three-dimensional radiation pattern of the total radiated power of the wireless module 3 according to the measurement data of the memory. In addition, the above process can be set by the main control computer 11 to be automatically executed from start to finish. The user only needs to view the final result from the main control computer 11, and does not need to input commands at each step, but can improve the convenience of measurement and save operation. time.

Referring to FIG. 1, FIG. 2 and FIG. 4, a flow chart of measuring the three-dimensional radiation pattern of the total isotropic sensitivity (TIS) of the wireless module 3 in the first embodiment will be described below.

Step F1: First, the user sets the energy, frequency and number of packets of the wireless signal to the measuring device 13 through the main control computer 11, and sends a corresponding wireless signal through the antenna 14 according to the set value. After the wireless module 3 receives the wireless signal and transmits it to the main control computer 11, the main control computer 11 corrects the set value of the measuring device 13 according to the measured data, and causes the antenna 14 to re-issue the wireless signal until the wireless module is detected. 3 is the sensitivity of this orientation.

Steps F2, F3: After completing step F1, the main control computer 11 causes the arm 123 to rotate the wireless module 3 along the second rotation axis 125 by a second predetermined angle, and repeatedly performs steps F1 and F2 until the arm 123 The cumulative rotation angle reaches a second upper angle limit (here 360 degrees).

Steps F4 and F5: After completing the foregoing steps, the main control computer 11 The rotary seat 121 is rotated by a first predetermined angle along its first rotation axis 124, and steps F1 to F4 are repeatedly performed until the cumulative rotation angle of the rotary base 121 reaches a first upper angle limit (here, 180 degrees).

According to the above process, the user can perform the wireless signal setting of the measuring device 13 by the main control computer 11 and control the measurement step to test the sensitivity of the wireless module 3 in various directions. After the measurement is completed, the main control computer 11 can construct a three-dimensional radiation pattern of the total omnidirectional sensitivity of the wireless module 3 according to the wireless signal data of the memory.

In this embodiment, the general judgment criterion of the sensitivity of the wireless module 3 in a specific orientation in step F1 is: in all the packets sent by the antenna 14, the wireless module 3 can receive the wireless signal energy corresponding to at least 90% of the packets. Threshold value. However, the sensitivity criterion can be set by the host computer 11 as needed, and is not limited to the contents disclosed herein.

In addition, steps S1 to S5 and steps F1 to F5 of the embodiment can be set to be automatically and continuously performed, and are not limited to being separately performed, and the total radiated power and total omnidirectional sensitivity of the wireless module 3 can be completed at one time. Measure. Further, the above measurement method can also measure characteristics other than the total radiation power and the total omnidirectional sensitivity, and is not limited to the contents disclosed in the present specification.

Next, a second preferred embodiment of the wireless test system 1 of the present invention will be described with reference to FIG. The second preferred embodiment is substantially the same as the first preferred embodiment. The difference is that in the second preferred embodiment, the wireless test system 1 further includes a remote computer 15 and a shielding box 16 disposed in the shielding room 2. .

Specifically, when the length of the wire (such as USB, PCI-E, etc.) connected to the wireless module 3 of the main control computer 11 is insufficient, the wireless module 3 and the main A remote computer 15 is disposed between the control computer 11 , and the remote computer 15 is electrically connected to the wireless module 3 and the main control computer 11 respectively, and is controlled by the main control computer 11 , and can control the wireless module 3 to perform wireless signals. Send and receive. The shielding box 16 can shield electromagnetic radiation (for example, the surface is attached with an absorbing material capable of absorbing electromagnetic radiation), and the remote computer 15 is housed therein, and the electromagnetic radiation generated by the remote computer 15 is isolated from the measurement of the wireless module 3. influences. According to this setting mode, the wireless module 3 and the remote computer 15 are connected through the above-mentioned types of wires, and the remote computer 15 and the main control computer 11 are connected through a network route of sufficient length, and the characteristic measurement of the wireless module 3 can also be performed. .

In summary, the present invention provides a wireless test system 1 that can measure a wireless module 3 that is not independently operated, and a method for measuring the wireless module 3 using the wireless test system 1. In addition, by using the system, the user can quickly and easily set and control the wireless module 3, the indexing mechanism 12 and the measuring device 13 through the main control computer 11 to measure the original characteristics of the wireless module 3. The purpose of the present invention can be achieved by improving the ease of use and reducing the time required to measure the three-dimensional radiation pattern of the wireless module 3.

The above is only the preferred embodiment of the present invention, and the scope of the present invention is not limited thereto, that is, the simple equivalent changes and modifications made by the patent application scope and patent specification content of the present invention, All remain within the scope of the invention patent.

1‧‧‧Wireless Test System

11‧‧‧Master computer

12‧‧‧Transfer institutions

121‧‧‧ rotating seat

122‧‧‧Support arm

123‧‧‧ spiral arm

124‧‧‧First rotation axis

125‧‧‧Second rotation axis

13‧‧‧Measurement device

14‧‧‧Antenna

15‧‧‧Remote computer

16‧‧‧Shielding box

2‧‧‧Shielding room

3‧‧‧Wireless Module

Claims (11)

A wireless test system is used in conjunction with a shielded room that shields electromagnetic radiation for measuring a three-dimensional radiation pattern of a wireless module that is not independently operated in the shielded room; defining an X direction that is perpendicular to each other in a three-dimensional space The wireless test system includes: a main control computer disposed outside the shielding room, electrically connected to the wireless module, and controlling the wireless module to transmit or receive wireless signals; and an indexing mechanism Provided in the shielding chamber, and includes a rotating base having a first rotating shaft extending along the Z direction, and controlled by the main control computer to rotate around the first rotating shaft on the XY plane, a supporting arm And disposed on the rotating base and extending in the Z direction, and a rotating arm disposed on the supporting arm and spaced apart from the rotating base, wherein the wireless module is substantially aligned with the first rotating shaft And having a second rotation axis extending along the X direction and passing through the support arm, the rotation arm being controlled by the main control computer to drive the wireless module to rotate around the second rotation axis; a measuring device, setting Outside the shield and Controlled by the main control computer; and an antenna disposed in the shielding chamber and substantially in the same XY plane as the spiral arm, and substantially aligned with the direction of the wireless module, the antenna is controlled by the measuring device to emit wireless Signal to the wireless mode Group, or receive wireless signals from the wireless module. The wireless test system of claim 1, further comprising a remote computer and a shielding box disposed in the shielding room, wherein the remote computer is electrically connected to the wireless module and the main control computer, respectively, and is controlled by The main control computer allows the wireless module to transmit and receive wireless signals; the shielding box shields electromagnetic radiation and houses the remote computer. The wireless test system of claim 1 or 2, wherein the measuring device is an optimal sample of a wireless tester or a wireless module. A method for measuring a wireless module that is not independently operated by a wireless test system for testing a three-dimensional radiation pattern of the wireless module disposed in a shielded room, the wireless test system including being disposed outside the shielded enclosure a main control computer and a measuring device, and an indexing mechanism disposed in the shielding chamber and an antenna aligned with the indexing mechanism, the indexing mechanism comprising a rotating base and a support disposed on the rotating base The arm and a swing arm disposed on the support arm, the measuring method includes the following steps: (A) the main control computer causes the wireless module mounted on the arm to emit a wireless signal, and the amount is transmitted through the antenna The measuring device receives the wireless signal; (B) the main control computer causes the rotating arm to drive the wireless module to rotate a second predetermined angle along the second rotating shaft of the rotating arm, and determine whether the cumulative rotating angle of the rotating arm reaches a second angle upper limit; if the determination result is "No", the step (A) is re-executed; if the determination result is "Yes", then the step (C) is performed; (C) the main control computer rotates the rotating seat along the first rotation axis of the rotating base by a first predetermined angle, and determines whether the cumulative rotation angle of the rotating base has reached a first angle upper limit; if the judgment result is " No, the step (A) is re-executed; if the result of the determination is "Yes", the measuring step is completed. The measurement method of claim 4, wherein the wireless signal sent by the wireless module in step (A) sets the energy power and frequency via the master computer. The measuring method of claim 4 or 5, wherein the wireless testing system further comprises a remote computer disposed in the shielding room and a shielding box capable of shielding electromagnetic radiation and accommodating the remote computer therein. In step (A), the master computer controls the wireless module through the remote computer. The measuring method of claim 4 or 5, wherein the measuring device is an optimal sample of a wireless tester or a wireless module. A method for measuring a wireless module that is not independently operated by a wireless test system for testing a three-dimensional radiation pattern of the wireless module disposed in a shielded room, the wireless test system including being disposed outside the shielded enclosure a main control computer and a measuring device, and an indexing mechanism disposed in the shielding chamber and an antenna aligned with the indexing mechanism, the indexing mechanism including a rotating base and a rotating base The support arm and a swing arm disposed on the support arm, the measuring method comprises the following steps: (A) the main control computer causes the measuring device to send a signal through the antenna a wireless signal, and the wireless module installed in the arm receives the wireless signal; (B) the master computer causes the arm to rotate the wireless module along the second axis of the arm to rotate a second predetermined Angle, and determine whether the cumulative rotation angle of the arm reaches a second angle upper limit; if the determination result is "No", then step (A) is re-executed; if the determination result is "Yes", then step (C) is performed; And (C) the main control computer rotates the rotating seat along the first rotation axis of the rotating base by a first predetermined angle, and determines whether the cumulative rotation angle of the rotating base has reached a first angle upper limit; If no, step (A) is re-executed; if the result of the determination is "Yes", the measurement step is completed. The measuring method of claim 8, wherein the wireless signal sent by the antenna in the step (A) is set by the master computer through the measuring device to set the frequency, the energy and the number of packets. The measuring method of claim 8 or 9, wherein the wireless testing system further comprises a remote computer disposed in the shielding room and a shielding box capable of shielding electromagnetic radiation and accommodating the remote computer therein. After the wireless module receives the wireless signal in step (A), the wireless signal is transmitted to the main control computer by the remote computer. The measuring method of claim 8 or 9, wherein the measuring device is an optimal sample of a wireless tester or a wireless module.